/*
 * Copyright 2010-2016 JetBrains s.r.o.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.jetbrains.kotlin.idea.highlighter

import com.intellij.codeInsight.daemon.ChangeLocalityDetector
import com.intellij.psi.PsiElement
import org.jetbrains.kotlin.psi.*
import org.jetbrains.kotlin.psi.psiUtil.parents

class KotlinChangeLocalityDetector : ChangeLocalityDetector {
    override fun getChangeHighlightingDirtyScopeFor(element: PsiElement): PsiElement? {
        val parent = element.parent
        if (element is KtBlockExpression && parent is KtNamedFunction && parent.name != null) {
            if (parent.parents.all { it is KtClassBody || it is KtClassOrObject || it is KtFile || it is KtScript }) {
                return parent
            }
        }

        return null
    }
}